May 10th was their first birthday. It was AWESOME, just ask them. They got 'da bird', a flying toy that amazingly wore them out. I've never seen a cat pant before, Hermie was exhausted but wanted more! Both Hermie and Louie fly at DA BIRD. Hermie is just more athletic that Louie but they both are into jumping. It was great. I now have many replacements for it. I am hoping for many years with my boys.